ID: 25928
Updated by: eru@php.net
Reported By: yvan dot taviaud at m4am dot net
-Status: Closed
+Status: Bogus
Bug Type: GD related
Operating System: RedHat 7.3
PHP Version: 4CVS-2003-10-20 (stable)
New Comment:
This is not a bug in PHP, please leave it on bogus.
Thank you!
Previous Comments:
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[2003-12-09 17:11:30] yvan dot taviaud at m4am dot net
Ok, I've found the workaround ! Please close the bugs I've noticed in a
previous note for this 'bug'.
So, the problem is that FreeType has suppressed a function in the 2nd
version : the bytecode interpreter. You need to reactivate it :
file : freetype-source-dir/include/freetype/config/ftoption.h
reactivate the commented line : /* #define
TT_CONFIG_OPTION_BYTECODE_INTERPRETER */
to : #define TT_CONFIG_OPTION_BYTECODE_INTERPRETER
And rebuild you freetype lib.
HTH, best regards,
Yvan.
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[2003-12-09 04:16:32] yvan dot taviaud at m4am dot net
Ok, it's a FreeType bug, and not a PHP bug, but I think it's important
to tell about since many 'PHP bugs' are stressed out.
Under Debian, just install libfreetype6_2.1.7-1_i386.deb ! I tried to
install the 2.1.7 from the sources, and I got the same bad
anti-alias/non-anti-alias. Same thing while compiling it under RedHat.
So strange. I'll try to find out why the Debian package is ok, whereas
a source compiling is not.
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[2003-12-09 03:40:32] yvan dot taviaud at m4am dot net
Ok, I think I found the problem and a fix !
In fact the problem occurs on my RedHat box but not on my Debian box.
I've managed to find that :
freetype-config --version
is 9.4.3 on RedHat and 9.5.3 on Debian ! I tried to uninstall
libfreetype6 on Debian, and install the 9.4.3, and the problem then
occurs ! So I think it must be the libfreetype6 that must be updated,
but I don't know exactly how... Because the 9.5.3 is not stable (my
Debian install is unstable/testing, so...).
I'll try to install 9.5.3 on RedHat, and feedback if OK or not. Please
note that this bug is the same as #7769 (not sure), #21879, #21554
(already closed) and #15405. Many to close then if I found that's the
good workaround ;o)
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[2003-10-21 15:31:09] sniper@php.net
The whole point of anti-aliasing explained:
http://www.widearea.co.uk/designer/anti.html
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[2003-10-20 19:26:38] yvan dot taviaud at m4am dot net
Description:
------------
My server is :
- RedHat 7.3
- Apache 1.3.28
- PHP 4.3.4RC3-dev (tried this last one to see if the bug disappears,
but not)
- bundled GD (2.0.15)
- FreeType 2.1.5
The problem is that when I use a negative color index for
ImageTTFText(), the antialias disappears, but the text is quite ugly,
and should not. No info on GD/FreeType website is available on such a
bug.
Reproduce code:
---------------
$height = 60;
$width = 150;
$font = "arial.ttf";
$img_en = imageCreate($width, $height);
$background_en = imageColorAllocate($img_en, 0xFF, 0xFF, 0xFF);
$color_en = imageColorAllocate($img_en, 0x0F, 0xBD, 0xBF);
// Antialias :
imageTTFText($img_en, 12, 0, 10, 30, $color_en, $font, "AZERTYUIOP");
// No antialias :
imageTTFText($img_en, 12, 0, 10, 50, -$color_en, $font, "AZERTYUIOP");
imagePNG($img_en);
Expected result:
----------------
A clean text, such as the one you could see on a web page (because the
text is never antialiased on a web page).
Actual result:
--------------
You could see the actual result at this address :
http://www.lacoccinelle.net/test/index.php
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Edit this bug report at http://bugs.php.net/?id=25928&edit=1